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Marquise|Lab Grown|IGI

1.77ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG830627864

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830627864

Diamond specifications and retailer prices

From $1,637 USD
As of November 2, 2026
Save $3,539 USD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,176 USD at With Clarity · As of November 2, 2026
View at With Clarity

About this 1.77ct lab-grown marquise diamond

This 1.77ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830627864 or 830627864. Listed at 14 retailers as of November 2, 2026, with prices from $1,637 to $5,176, a $3,539 spread on the same certified stone. With Clarity lists it at $5,176. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830627864
Dimensions12.24 × 6.29 × 4.06 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.24 mm6.29 mm1.77 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830627864
Side View
Table 58.0%Crown 36.7°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,961 USD|Low: $1,637 USD|High: $5,176 USD|Avg: $3,044 USD|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
November 2, 2026
Retailer 10$1,637 USD
Retailer 12$1,651 USD
Retailer 1$1,961 USD
Retailer 3$2,040 USD
Retailer 8$2,169 USD
Retailer 9$2,425 USD
Retailer 7$2,485 USD
Retailer 4$3,505 USD
Retailer 11$3,914 USD
Retailer 5$4,345 USD
Retailer 6$4,676 USD
Retailer 2$4,734 USD
With Clarity$5,176 USD

23 data points across 13 retailers

14 retailers$1,637 USD to $5,176 USD

A
Cheapest Retailer
-
$1,637 USD
A
Retailer 2
-
$1,651 USD
HK$12,900 HKD
View
A
Retailer 3
-
$1,770 USD
View
A
Retailer 4
-
$1,961 USD
£1,544 GBP
View
B+
Retailer 5
-
$2,040 USD
View
B+
Retailer 6
-
$2,169 USD
€2,066 EUR
View
B+
Retailer 7
-
$2,425 USD
View
B+
Retailer 8
-
$2,485 USD
ZAR 40,152 ZAR
View
Retailer 9
-
$3,505 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$3,914 USD
View
B
Retailer 11
-
$4,345 USD
£3,421 GBP
View
B
Retailer 12
-
$4,676 USD
A$7,194 AUD
View
B
Retailer 13
-
$4,734 USD
View
Most Expensive
B
With Clarity
830627864 · Nov 2
$5,176 USD
View
13 more retailers have this diamond
Prices start from $1,637 USDSave up to $3,539 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.77ct Marquise
$1,637 USD